02 chevy 1500 alarm/remote start

the little black box.?? lol.. no.. i was thinking that was for a coded key.. and this truck  ( the guy that drives it ) starts and runs with a key from OSH or ACE hardware.. A plan jane key..

use the little black box, or you get no remote start!!!!!

tach is white wire at ecm, driver side engine comp.    #10 off of the ecm it is there!!!!

TY.. i'll let you know what happens..

Correct  your truck does have a passlock II.....simply install a 555L from DEI.  If installed correctly it should read the resistance code (No key required).  The 555L comes with the coloring code for the two wires you're going to need (more than likely it's yellow & orange black).

I have a 2003 GMC yukon. You will need a DEI 555L I paid $25.00 for it New off Ebay. You will also need a DEI 456G This will control your door lock . it go on the BCM module keep doors lock when you remote start the truck. I paid $15.00 for that it was price wrong @ Cricut city I didn't say a thing when he ring it up.  Now I need help with the smart window module. That aother post.

o one more thing you will use the wire for the 555l up where the key go. The black thin wire in the yellow wire. ( don't cut the black ) cut the yellow.

good luck